title: Hydronephrosis and pelvic organ prolapse.
abstract: OBJECTIVE
  To determine the prevalence of hydronephrosis in a cohort of women who had undergone surgery for pelvic organ prolapse (POP).
  
  
  METHODS
  This observational, retrospective survey was conducted from January 2000 to December 2007 on 257 consecutive candidates for vaginal or abdominal surgical repair of POP (grade >2). In all patients, a standard clinical and instrumental urogynecologic workup was followed by POP repair. Follow-up visits were scheduled at 3, 6, and 9 months postoperatively and then annually.
  
  
  RESULTS
  Preoperative hydronephrosis was found in 13 patients (5%) with a mean age of 69.2 +/- 6.6 years. It was moderate in 5 and severe in 8; bilateral in 8 (3.1%), monolateral in 5 (1.9%); and POP-related in 9 cases. Surgical POP repair resolved the prolapse all patients and cured the ureterohydronephrosis in 7, with moderate ectasia of the upper urinary tract persisting in 2. The renal function at diagnosis was normal in 12 of 13 patients with hydronephrosis (mean 113 +/- 15 micromol/L); 1 patient had a high serum creatinine concentration (220 micromol/L). No patient developed renal failure during a mean follow-up of 43.5 months.
  
  
  CONCLUSIONS
  The prevalence of hydronephrosis was low in patients with POP who were candidates for surgery. POP repair usually resolves prolapse-related hydronephrosis and prevents serious long-term complications.
authors.affiliation: Section of Urology and Andrology, Department of Medical-Surgical Specialties and Public Health, University of Perugia, Perugia, Italy. ecostant@unipg.it
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Costantini
authors.forename: Massimo
authors.initials: M
authors.lastname: Lazzeri
authors.forename: Luigi
authors.initials: L
authors.lastname: Mearini
authors.forename: Alessandro
authors.initials: A
authors.lastname: Zucchi
authors.forename: Michele
authors.initials: M
authors.lastname: Del Zingaro
authors.forename: Massimo
authors.initials: M
authors.lastname: Porena
mesh_terms: D000368:Aged; D052858:Cystocele / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000453:epidemiology*; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology*; D015995:Prevalence; D012005:Rectal Prolapse / Q000150:complications / Q000601:surgery*; D012189:Retrospective Studies; D014596:Uterine Prolapse / Q000150:complications / Q000601:surgery*